listening to recordings. it is the score that is crucial. if it is performed a lot, it is a sign that the music is still fresh. >> before he begins rehearsing with the orchestra, he sits down with the peace alone to work out how beethoven intended it to sound. -- he sits down with the piece alone. the composer left precise instructions. >> you have to study, study, study, measure by measure, movement by movement. the harmony, when the instruments are coming, and you have to figure the prominence of the peace, where it figures in the composer's life, the style of the times, and you have to transfer that to the orchestra. it start working on it two months before hand, going through it for yourself -- you have to start working on it two months beforehand, going through it for yourself.